Be cold, and 'Eri' living in ideal Home is done for the unreasonable reason "why sexual desire gets excited by too much" by a boyfriend. The words that are kind to 'Maakun' of the younger brother are taken, and the Eri regains spirit in such a case. And the Eri which saw the penis which erected of the Maakun once says that it is sex education without being able to endure the impulse that is frustration, and use a real younger brother for sex processing.
